/*
 * Copyright 2022 the original author or authors.
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p>
 * https://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.openrewrite.protobuf;

import org.openrewrite.Tree;
import org.openrewrite.protobuf.tree.Space;

import java.util.concurrent.atomic.AtomicInteger;

public class CountLinesVisitor extends ProtoVisitor<AtomicInteger> {

    @Override
    public Space visitSpace(Space space, AtomicInteger count) {
        if(space.getWhitespace().contains("\n")) {
            count.incrementAndGet();
        }
        return super.visitSpace(space, count);
    }

    public static int countLines(Tree tree) {
        return new CountLinesVisitor().reduce(tree, new AtomicInteger()).get();
    }
}
